php常用函数封装.doc

常用函数封装 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273?php/* 获取客户端IP* return string description*/function getClientIp() $ip = NULL;if (isset($_SERVERHTTP_X_FORWARDED_FOR) $arr = explode(, $_SERVERHTTP_X_FORWARDED_FOR);$pos = array_search(unknown,$arr);if(false != $pos) unset($arr$pos);$ip = trim($arr0);elseif (isset($_SERVERHTTP_CLIENT_IP) $ip = $_SERVERHTTP_CLIENT_IP;elseif (isset($_SERVERREMOTE_ADDR) $ip = $_SERVERREMOTE_ADDR;/ IP地址合法验证$ip = (false != ip2long($ip) ? $ip : ;return $ip;/* 获取在线IP* return String*/function getOnlineIp($format=0) global $S_GLOBAL;if(empty($S_GLOBALonlineip) if(getenv(HTTP_CLIENT_IP) & strcasecmp(getenv(HTTP_CLIENT_IP), unknown) $onlineip = getenv(HTTP_CLIENT_IP); elseif(getenv(HTTP_X_FORWARDED_FOR) & strcasecmp(getenv(HTTP_X_FORWARDED_FOR), unknown) $onlineip = getenv(HTTP_X_FORWARDED_FOR); elseif(getenv(REMOTE_ADDR) & strcasecmp(getenv(REMOTE_ADDR), unknown) $onlineip = getenv(REMOTE_ADDR); elseif(isset($_SERVERREMOTE_ADDR) & $_SERVERREMOTE_ADDR & strcasecmp($_SERVERREMOTE_ADDR, unknown) $onlineip = $_SERVERREMOTE_ADDR;preg_match(/d.7,15/, $onlineip, $onlineipmatches);$S_GLOBALonlineip = $onlineipmatches0 ? $onlineipmatches0 : unknown;if($format) $ips = explode(., $S_GLOBALonlineip);for($i=0;$i3;$i+) $ips$i = intval($ips$i);return sprintf(%03d%03d%03d, $ips0, $ips1, $ips2); else return $S_GLOBALonlineip;/* 获取url* return type description*/function getUrl()$pageURL = http;if (isset($_SERVERHTTPS) & $_SERVERHTTPS = on) $pageURL .= s;$pageURL .= :/;if ($_SERVERSERVER_PORT != 80) $pageURL .= $_SERVERHTTP_HOST . : . $_SERVERSERVER_PORT . $_SERVERREQUEST_URI; else $pageURL .= $_SERVERHTTP_HOST . $_SERVERREQUEST_URI;return $pageURL;/* 获取当前站点的访问路径根目录* return type description*/function getSiteUrl() $uri = $_SERVERREQUEST_URI?$_SERVERREQUEST_URI:($_SERVERPHP_SELF?$_SERVERPHP_SELF:$_SERVERSCRIPT_NAME);return http:/.$_SERVERHTTP_HOST.substr($uri, 0, strrpos($uri, /)+1);/* 字符串截取，支持中文和其他编码* param string $str 字符串* param integer $start 起始位置* param integer $length 截取长度* param string $charset 字符串编码* param boolean $suffix 是否有省略号* return type description*/function msubstr($str, $start=0, $length=15, $charset=utf-8, $suffix=true) if(function_exists(mb_substr) return mb_substr($str, $start, $length, $charset); elseif(function_exists(iconv_substr) return iconv_substr($str,$start,$length,$charset);$reutf-8 = /x01-x7f|xc2-xdfx80-xbf|xe0-xefx80-xbf2|xf0-xffx80-xbf3/;$regb2312 = /x01-x7f|xb0-xf7xa0-xfe/;$regbk = /x01-x7f|x81-xfex40-xfe/;$rebig5 = /x01-x7f|x81-xfe(x40-x7e|xa1-xfe)/;preg_match_all($re$charset, $str, $match);$slice = join(,array_slice($match0, $start, $length);if($suffix) return $slice.;return $slice;/* php 实现js escape 函数* param type $string description* param string $encoding description* return type description*/function escape($string, $encoding = UTF-8)$return = null;for ($x = 0; $x 1) / 多字节字符$return .= %u . strtoupper(bin2hex(mb_convert_encoding($str, UCS-2, $encoding); else $return .= % . strtoupper(bin2hex($str);return $return;/* php 实现 js unescape函数* param type $str description* return type description*/function unescape($str) $str = rawurldecode($str);preg_match_all(/(?:%u.4)|.4;|.+/U,$str,$r);$ar = $r0;foreach($ar as $k=$v) if(substr($v,0,2) = %u)$ar$k = iconv(UCS-2,utf-8/IGNORE,pack(H4,substr($v,-4); elseif(substr($v,0,3) = ) $ar$k = iconv(UCS-2,utf-8,pack(H4,substr($v,3,-1); elseif(substr($v,0,2) = $ar$k = iconv(UCS-2,utf-8,pack(n,substr($v,2,-1);return join(,$ar);/* 数字转人名币* param type $num description* return type description*/function num2rmb ($num) $c1 = 零壹贰叁肆伍陆柒捌玖;$c2 = 分角元拾佰仟万拾佰仟亿;$num = round($num, 2);$num = $num * 100;if (strlen($num) 10) return oh,sorry,the number is too long!;$i = 0;$c = ;while (1) if ($i = 0) $n = substr($num, strlen($num)-1, 1); else $n = $num % 10;$p1 = substr($c1, 3 * $n, 3);$p2 = substr($c2, 3 * $i, 3);if ($n != 0 | ($n = 0 & ($p2 = 亿 | $p2 = 万 | $p2 = 元) $c = $p1 . $p2 . $c; else $c = $p1 . $c;$i = $i + 1;$num = $num / 10;$num = (int)$num;if ($num = 0) break;$j = 0;$slen = strlen($c);while ($j 0, = 1, = 2, = 3, = 4, = 5, = 6, = 7, = 8, = 9, = A, = B, = C, = D, = E, = F, = G, = H, = I, = J, = K, = L, = M, = N, = O, = P, = Q, = R, = S, = T, = U, = V, = W, = X, = Y, = Z, = a, = b, = c, = d, = e, = f, = g, = h, = i, = j, = k, = l, = m, = n, = o, = p, = q, = r, = s, = t, = u, = v, = w, = x, = y, = z,（ = (, ） = ), = , = , 【 = ,】 = , = , = , = , = , = , = %, = +, = -, = -, = -,： = :, 。 = ., 、 = , ， = ., 、 = .,； = ;, ？ = ?, ！ = !, = -, = |,” = , “ = , = , = , = |, = , = , = .);return strtr($str, $arr);/* 下载* param type $filename description* param string $dir description* return type description*/function downloads($filename,$dir=./)$filepath = $dir.$filename;if (!file_exists($filepath)header(Content-type: text/html; charset=utf-8);echo File not found!;exit; else $file = fopen($filepath,r);Header(Content-type: application/octet-stream);Header(Accept-Ranges: bytes);Header(Accept-Length: .filesize($filepath);Header(Content-Disposition: attachment; filename=.$filename);echo fread($file, filesize($filepath);fclose($file);/* 创建一个目录树* param type $dir description* param integer $mode description* return type description*/function mkdirs($dir, $mode = 0777) if (!is_dir($dir) mkdirs(dirname($dir), $mode);return mkdir($dir, $mode);return true;2.文件function.php9KB下载(65)跳至1234?123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273?php/* 获取客户端IP* return string description*/function getClientIp() $ip = NULL;if (isset($_SERVERHTTP_X_FORWARDED_FOR) $arr = explode(, $_SERVERHTTP_X_FORWARDED_FOR);$pos = array_search(unknown,$arr);if(false != $pos) unset($arr$pos);$ip = trim($arr0);elseif (isset($_SERVERHTTP_CLIENT_IP) $ip = $_SERVERHTTP_CLIENT_IP;elseif (isset($_SERVERREMOTE_ADDR) $ip = $_SERVERREMOTE_ADDR;/ IP地址合法验证$ip = (false != ip2long($ip) ? $ip : ;return $ip;/* 获取在线IP* return String*/function getOnlineIp($format=0) global $S_GLOBAL;if(empty($S_GLOBALonlineip) if(getenv(HTTP_CLIENT_IP) & strcasecmp(getenv(HTTP_CLIENT_IP), unknown) $onlineip = getenv(HTTP_CLIENT_IP); elseif(getenv(HTTP_X_FORWARDED_FOR) & strcasecmp(getenv(HTTP_X_FORWARDED_FOR), unknown) $onlineip = getenv(HTTP_X_FORWARDED_FOR); elseif(getenv(REMOTE_ADDR) & strcasecmp(getenv(REMOTE_ADDR), unknown) $onlineip = getenv(REMOTE_ADDR); elseif(isset($_SERVERREMOTE_ADDR) & $_SERVERREMOTE_ADDR & strcasecmp($_SERVERREMOTE_ADDR, unknown) $onlineip = $_SERVERREMOTE_ADDR;preg_match(/d.7,15/, $onlineip, $onlineipmatches);$S_GLOBALonlineip = $onlineipmatches0 ? $onlineipmatches0 : unknown;if($format) $ips = explode(., $S_GLOBALonlineip);for($i=0;$i3;$i+) $ips$i = intval($ips$i);return sprintf(%03d%03d%03d, $ips0, $ips1, $ips2); else return $S_GLOBALonlineip;/* 获取url* return type description*/function getUrl()$pageURL = http;if (isset($_SERVERHTTPS) & $_SERVERHTTPS = on) $pageURL .= s;$pageURL .= :/;if ($_SERVERSERVER_PORT != 80) $pageURL .= $_SERVERHTTP_HOST . : . $_SERVERSERVER_PORT . $_SERVERREQUEST_URI; else $pageURL .= $_SERVERHTTP_HOST . $_SERVERREQUEST_URI;return $pageURL;/* 获取当前站点的访问路径根目录* return type description*/function getSiteUrl() $uri = $_SERVERREQUEST_URI?$_SERVERREQUEST_URI:($_SERVERPHP_SELF?$_SERVERPHP_SELF:$_SERVERSCRIPT_NAME);return http:/.$_SERVERHTTP_HOST.substr($uri, 0, strrpos($uri, /)+1);/* 字符串截取，支持中文和其他编码* param string $str 字符串* param integer $start 起始位置* param integer $length 截取长度* param string $charset 字符串编码* param boolean $suffix 是否有省略号* return type description*/function msubstr($str, $start=0, $length=15, $charset=utf-8, $suffix=true) if(function_exists(mb_substr) return mb_substr($str, $start, $length, $charset); elseif(function_exists(iconv_substr) return iconv_substr($str,$start,$length,$charset);$reutf-8 = /x01-x7f|xc2-xdfx80-xbf|xe0-xefx80-xbf2|xf0-xffx80-xbf3/;$regb2312 = /x01-x7f|xb0-xf7xa0-xfe/;$regbk = /x01-x7f|x81-xfex40-xfe/;$rebig5 = /x01-x7f|x81-xfe(x40-x7e|xa1-xfe)/;preg_match_all($re$charset, $str, $match);$slice = join(,array_slice($match0, $start, $length);if($suffix) return $slice.;return $slice;/* php 实现js escape 函数* param type $string description* param string $encoding description* return type description*/function escape($string, $encoding = UTF-8)$return = null;for ($x = 0; $x 1) / 多字节字符$return .= %u . strtoupper(bin2hex(mb_convert_encoding($str, UCS-2, $encoding); else $return .= % . strtoupper(bin2hex($str);return $return;/* php 实现 js unescape函数* param type $str description* return type description*/function unescape($str) $str = rawurldecode($str);preg_match_all(/(?:%u.4)|.4;|.+/U,$str,$r);$ar = $r0;foreach($ar as $k=$v) if(substr($v,0,2) = %u)$ar$k = iconv(UCS-2,utf-8/IGNORE,pack(H4,substr($v,-4); elseif(substr($v,0,3) = ) $ar$k = iconv(UCS-2,utf-8,pack(H4,substr($v,3,-1); elseif(substr($v,0,2) = $ar$k = iconv(UCS-2,utf-8,pack(n,substr($v,2,-1);return join(,$ar);/* 数字转人名币* param type $num description* return type description*/function num2rmb ($num) $c1 = 零壹贰叁肆伍陆柒捌玖;$c2 = 分角元拾佰仟万拾佰仟亿;$num = round($num, 2);$num = $num * 100;if (strlen($num) 10) return oh,sorry,the number is too long!;$i = 0;$c = ;while (1) if ($i = 0) $n =